* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.header {
    text-align: center;
    margin-bottom: 30px;
}

.search-container {
    max-width: 600px;
    margin: 0 auto 30px;
    position: relative;
}

.search-bar {
    width: 100%;
    padding: 15px 50px 15px 20px;
    border-radius: 50px;
    border: none;
    font-size: 16px;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.search-bar:focus {
    outline: none;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}

.search-icon {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
    font-size: 20px;
    pointer-events: none;
}

.groups-container {
    max-width: 1400px;
    margin: 0 auto;
}

.group {
    margin-bottom: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 20px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.group.collapsed .grid-container {
    display: none;
}

.group-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    cursor: pointer;
    user-select: none;
}

.group-title {
    font-size: 20px;
    font-weight: 600;
    color: white;
    display: flex;
    align-items: center;
    gap: 10px;
}

.collapse-icon {
    transition: transform 0.3s ease;
    font-size: 16px;
}

.group.collapsed .collapse-icon {
    transform: rotate(-90deg);
}

.group-actions {
    display: flex;
    gap: 10px;
}

.group-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    padding: 6px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s ease;
}

.group-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 15px;
}

.tile {
    aspect-ratio: 1;
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    color: white;
    text-decoration: none;
}

.tile:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.tile.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.tile.drag-over {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

.tile-icon {
    font-size: 40px;
    margin-bottom: 10px;
}

.tile-title {
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    padding: 0 10px;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.add-tile {
    background: rgba(255, 255, 255, 0.2);
    border: 2px dashed rgba(255, 255, 255, 0.5);
    color: white;
}

.add-tile:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: white;
}

.delete-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    background: rgba(255, 255, 255, 0.9);
    color: #ff4444;
    border: none;
    border-radius: 50%;
    width: 25px;
    height: 25px;
    font-size: 16px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.tile:hover .delete-btn {
    display: flex;
}

.delete-btn:hover {
    background: #ff4444;
    color: white;
    transform: scale(1.1);
}

.add-group-btn {
    display: block;
    margin: 0 auto 30px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px dashed rgba(255, 255, 255, 0.5);
    color: white;
    padding: 12px 30px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.add-group-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: white;
    transform: translateY(-2px);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 20px;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlide 0.3s ease;
}

@keyframes modalSlide {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-title {
    font-size: 24px;
    font-weight: 600;
    color: #333;
}

.close-btn {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: #999;
    transition: all 0.2s ease;
}

.close-btn:hover {
    color: #333;
    transform: rotate(90deg);
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
}

.form-input, .form-select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.2s ease;
    background: white;
}

.form-input:focus, .form-select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.color-picker {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 10px;
    margin-top: 10px;
}

.color-option {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 3px solid transparent;
}

.color-option:hover {
    transform: scale(1.1);
}

.color-option.selected {
    border-color: #333;
    box-shadow: 0 0 0 2px white;
}

.icon-picker {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
    margin-top: 10px;
    max-height: 200px;
    overflow-y: auto;
    padding: 10px;
    background: #f5f5f5;
    border-radius: 10px;
}

.icon-option {
    padding: 15px;
    background: white;
    border-radius: 10px;
    text-align: center;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 2px solid transparent;
}

.icon-option:hover {
    transform: scale(1.1);
    background: #f0f0f0;
}

.icon-option.selected {
    border-color: #667eea;
    background: #e0e8ff;
}

.save-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: all 0.3s ease;
}

.save-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.toolbar {
    max-width: 1400px;
    margin: 0 auto 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.toolbar-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
}

.toolbar-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.group.drag-over {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

@media (max-width: 768px) {
    .grid-container {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
        gap: 10px;
    }
    
    .tile-icon {
        font-size: 30px;
    }
    
    .tile-title {
        font-size: 12px;
    }

    .group-title {
        font-size: 18px;
    }
}